Results 61 to 70 of about 142,158 (290)

A theoretical analysis of a piezoelectric ultrasound device with an active matching layer [PDF]

, 2007
This paper investigates the use of magnetically active materials in the matching layer of a piezoelectric transducer. This then allows the performance of the device to be dynamically altered by applying an external field.
Hayward, G., Mulholland, A., O'Leary, R.L., Parr, A.C.S., Pethrick, R.A., Ramadas, S.N., Troge, A.   +6 more
core   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Calculation of the Electron Spin Relaxation Times in InSb and InAs by the Projection-Reduction Method

, 2014
The electron spin relaxation times in a system of electrons interacting with piezoelectric phonons mediated through spin-orbit interactions were calculated using the formula derived from the projection-reduction method.
Kang, Nam Lyong
core   +1 more source

Numerical modeling of shape and topology optimisation of a piezoelectric cantilever beam in an energy-harvesting sensor [PDF]

, 2016
Piezoelectric materials are excellent transducers for converting mechanical energy from the environment for use as electrical energy. The conversion of mechanical energy to electrical energy is a key component in the development of self-powered devices ...
Liu, Jing-Sheng, Thein, Chung Ket
core   +1 more source

Piezoelectric Surface Charge and Dynamic Stimulation Synergize to Promote Cardiac Myoblast Alignment and Maturation

Advanced Healthcare Materials, EarlyView.
Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira, Sylvie Ribeiro, Senentxu Lanceros‐Mendez, Clarisse Ribeiro   +3 more
wiley   +1 more source

Sono‐Piezo Dynamic Therapy: Utilizing Piezoelectric Materials as Sonosensitizer for Sonodynamic Therapy

Advanced Science
Sonodynamic therapy (SDT) represents a promising approach for cancer treatment. Compared to photodynamic therapy, SDT offers increased penetration depth and higher precision.
Zhiguang Chen, Liang Sang, Yanjun Liu, ZhiQun Bai   +3 more
doaj   +1 more source

Advancements in BaTiO3-Based Ultrasound‐Triggered Piezoelectric Catalysis for Tumor Therapy [PDF]

Advanced Ultrasound in Diagnosis and Therapy
Barium titanate (BaTiO3), as an emerging inorganic piezoelectric material with excellent piezoelectric catalytic effects, has showing advantages in tumor therapy.
Shiti Shama, PhD, Xinxin Xie, MD, Ruiqi Wu, MD, Ping He, MD, Xiaoda Li, PhD, Qingfeng Chen, PhD, Xiaolong Liang, PhD
doaj   +1 more source

Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting [PDF]

Archives of Metallurgy and Materials, 2018
An optimized method of vibration Energy Harvesting is based on a step-down transformer that regulates the power flow from the piezoelectric element to the desired electronic load.
L. Kozielski, K. Feliksik, B. Wodecka-Duś, D. Szalbot, S. Tutu   +4 more
doaj   +1 more source

Investigation of electrical properties for cantilever-based piezoelectric energy harvester [PDF]

, 2019
In the present era, the renewable sources of energy, e.g., piezoelectric materials are in great demand. They play a vital role in the field of micro-electromechanical systems, e.g., sensors and actuators.
Ali, A, Butt, Z, Elahi, H, Khan, Aa, Pasha, Ra, Sheeraz, Ma   +5 more
core   +1 more source

A Data Driven Review of In Vitro Electrical and Mechanical Stimulation for Post‐Acute Phase Wound Healing

Advanced Healthcare Materials, EarlyView.
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess, Ellen F. Marsh, Veronica M. Lucian, Malavika Nair   +3 more
wiley   +1 more source